def include(app):
conversion_map = {
'authenticator': 'object',
'authorizer': 'object',
}
defaults = {
'authorizer': None,
}
required = ('authenticator',)
settings = parse_settings(
app.settings, conversion_map=conversion_map, defaults=defaults,
required=required, prefix='tangled.auth.')
app['authenticator'] = settings['authenticator']
app['authenticator.args'] = parse_settings(
settings, prefix='authenticator.')
app['authorizer'] = settings['authorizer']
app['authorizer.args'] = parse_settings(settings, prefix='authorizer.')
if app['authorizer'] and not app['authenticator']:
raise ConfigurationError('No authenticator registered')
app.settings['tangled.app.handler.auth'] = auth_handler
app.add_config_field('*/*', 'requires_authentication', False)
app.add_config_field('*/*', 'permission', None)
app.add_config_field('*/*', 'not_logged_in', False)
app.add_request_attribute(authenticator)
app.add_request_attribute(authorizer)
def include(app):
conversion_map = {
'url': make_url,
'make_engine': 'object',
'make_session_factory': 'object',
'sessionmaker.class_': 'object',
'sessionmaker.autoflush': 'bool',
'sessionmaker.autocommit': 'bool',
'sessionmaker.expire_on_commit': 'bool',
}
defaults = {
'make_engine': make_engine,
'make_session_factory': make_session_factory,
}
settings = parse_settings(
app.settings, conversion_map=conversion_map, defaults=defaults,
prefix='sqlalchemy.')
engine = settings['make_engine'](app, settings)
app['sqlalchemy.engine'] = engine
session_factory = settings['make_session_factory'](app, settings)
app['sqlalchemy.session_factory'] = session_factory
def make_db_session(request):
return request.app['sqlalchemy.session_factory']()
@cached_property
def db_session(request):
session = request.make_db_session()
request.on_finished(close, session)
return session
def close(app, request, response, session):
if response is None or (400 <= response.status_int < 599):
session.rollback()
log.debug('Session rolled back')
else:
session.commit()
log.debug('Session committed')
session.close()
log.debug('Session closed')
@property
@contextlib.contextmanager
def managed_db_session(request):
session = request.make_db_session()
try:
yield session
except:
session.rollback()
raise
else:
session.commit()
finally:
session.close()
app.add_request_attribute(make_db_session)
app.add_request_attribute(db_session)
app.add_request_attribute(managed_db_session)
def make_app_settings(settings, conversion_map={}, defaults={}, required=(),
prefix=None, strip_prefix=True, parse=True, section='app',
**extra_settings):
"""Create a properly initialized application settings dict.
In simple cases, you don't need to call this directly--you can just
pass a settings file name or a plain dict to
:class:`tangled.web.app.Application`, and this will be called for
you.
If you need to do custom parsing (e.g., if your app has custom
settings), you can call this function with a conversion map,
defaults, &c. It's a wrapper around :func:`.parse_settings` that
adds a bit of extra functionality:
- A file name can be passed instead of a settings dict, in
which case the settings will be extracted from the specified
``section`` of that file.
- Core tangled.web defaults are *always* added because
:class:`tangled.web.app.Application` assumes they are always
set.
- Settings parsing can be disabled by passing ``parse=False``.
This only applies to *your* settings, including defaults and
extra settings (*core* defaults are always parsed).
- Extra settings can be passed as keyword args; they will
override all other settings, and they will be parsed (or not)
along with other settings.
- Required settings are checked for after all the settings are
merged.
In really special cases you can create a subclass of
:class:`.AAppSettings` and then construct your settings dict by
hand (eschewing the use of this function).
"""
app_settings = parse_settings_file(
'tangled.web:defaults.ini', conversion_map=CONVERSION_MAP,
meta_settings=False)
if isinstance(settings, str):
settings = parse_settings_file(settings, section=section)
settings.update(extra_settings)
if parse:
_conversion_map = CONVERSION_MAP.copy()
_conversion_map.update(conversion_map)
settings = parse_settings(
settings, conversion_map=_conversion_map, defaults=defaults,
prefix=prefix, strip_prefix=strip_prefix)
else:
app_settings.update(defaults)
app_settings.update(settings)
check_required(app_settings, required)
return AppSettings(app_settings)
def create_lookup(settings):
"""Create Mako template lookup after application is created."""
conversion_map = {
'default_filters': 'list',
'directories': as_list_of(abs_path),
'file_system_checks': 'bool',
'imports': 'list',
}
defaults = {
'default_filters': 'h',
'input_encoding': 'utf-8',
'output_encoding': None,
}
lookup_args = parse_settings(
settings, conversion_map=conversion_map, defaults=defaults,
prefix='mako.lookup.')
lookup = TemplateLookup(**lookup_args)
return lookup
def create_lookup(settings):
"""Create Mako template lookup after application is created."""
conversion_map = {
'default_filters': 'list',
'directories': as_list_of(abs_path),
'file_system_checks': 'bool',
'imports': 'list',
}
defaults = {
'default_filters': 'h',
'input_encoding': 'utf-8',
'output_encoding': None,
}
lookup_args = parse_settings(settings,
conversion_map=conversion_map,
defaults=defaults,
prefix='mako.lookup.')
lookup = TemplateLookup(**lookup_args)
return lookup
def include(app):
conversion_map = {
'auto': 'bool',
# TODO: Support datetime and timedelta too?
'cookie_expires': as_first_of('int', 'bool'),
}
defaults = {
'auto': True,
'cookie_expires': True,
'type': 'file',
'data_dir': os.path.join(os.getcwd(), 'data/session'),
}
required = ('key', 'secret')
settings = parse_settings(
app.settings, conversion_map=conversion_map, defaults=defaults,
required=required, prefix='beaker.session.')
app['session_factory'] = SessionObject
app['session_factory.args'] = settings
app.add_request_attribute(session)
app.add_request_attribute(flash)
